124 PROCEEDINGS OF THE AMERICAN ACADEMY. 



P. longe-peduncclatum, Le Conte (Le Comte), Journ. Phys. xci. 

 284 (1820); Kunth, Enum. i. 56 ; Hook. f. (3), 172; Anderss. (1), 

 132, & (2), 42. Panicum fuscitm, Rob. & Greenm. (1), 148, uot Sw. 



— Albemarle Isl. : Macrae ; Iguana Cove, Snodgrass & Heller, no. 

 131 (lib. Gr.) ; Tagus Cove, Snodgrass & Heller, nos. 199 (hb. Gr.), 

 891 (hb. Gr.), 892 (bb. Gr.). Bindloe Isl. : Snodgrass & Heller, 

 no. 775 (hb. Gr.). Charles' Isl. : Darwin ; Andersson ; Baur, no. 

 148 (hb. Gr.). This species is by some reduced to P. arenarium, 

 Schrad., which however is a later name. Further distrib. southern U. S. 

 to Brazil. 



P. penicillatus!, Hook. f. (3), 171 ; Anderss. (1), 132, & (2), 42. 



— Charles Isl. : Darwin. Not since collected. Endemic. 



P. scrobiculatum, L. Mant. i. 29 (1767), as scrobiculata ; Caruel, 

 (1), 621. — Chatham Isl. : Chierchia, ace. to Caruel. General distrib. 

 tropics of the Old World. It is remarkable, if Prof. Caruel was correct 

 iu his identification of this gerontogeous grass, that no trace of it has been 

 found in the Galapagos Archipelago by any other collector. 



P. sp. — Indefatigable Isl.: north, Snodg7-ass& Heller, no. 669 (hb. 

 Gr.). Resembling P. canescens, Anderss., but with the leaves bearded 

 upon both surfaces with a long and very fine villosity, and the spikelets 

 considerably larger. Probably a new species. 



Pennisetum, Rich. 



P. pauperum, Nees ace. to Steud. Syn. 102 (1855). P. exaltation, 

 Hook. f. & Jacks. Ind. Kew. i. 112, 1893 (see reference under AmpJio- 

 chaeta). Amphochaeta exaltata, Anderss. (1), 137, & (2), 45, t. 1, f. 2. 

 Gymnothrix paupera, Nees ace. to Steud. I.e. — Albemarle Isl.: 

 Andersson (hb. Gr.) ; Iguana Cove, Snodgrass & Heller, nos. 16 (hb. 

 Gr.), 141 (hb. Gr.) ; near Tagus Cove, altitude 150 to 1230 m., in 

 large clumps 1 to 2 m. high, Snodgrass & Heller, no. 223 (hb. Gr.). 

 Endemic, and so far as known confined to the single Island. 



Setaria, Beauv. 



S. floriana, Anderss. (1), 138, & (2), 46. — Charles Isl. : An- 

 dersson. Not seen by the writer. Endemic. 



S. setosa, Beauv. Agrost. 51 (1812). S. caudata, R. & S. Syst. ii. 

 495 (1817), slender form. S. Antillarum, Kunth, Rev. Gram. i. 46 

 (1829); Anderss. (1), 138, & (2), 46; Rob. & Greenm. (1), 148. 

 ?S. Eottleri, Hook. f. (3), 172 ; Anderss. (1), 139, & (2), 46 ; not Spr. 



